Make the node controller return the modified time for deleted nodes

Fixes #384
Fix print CSS (fixes #379)
Return "action" of a note comment in the xml formatting to

This fixes #360
Search sidebar: don't scroll heading ('close' stays visible)
Single tab keypress focus on map for keyboard users

When one goes to the default map page, the first tabindex is set to the
search field, which is good. But, to use the keyboard with the map (arrows
for scrolling, =/- for zooming), one must press the tab key many times.

This modification quickly gets the keyboard to a much-used location via
a single keypress.